1201513312 has 24 divisors (see below), whose sum is σ = 2393984376. Its totient is φ = 593517312.

The previous prime is 1201513309. The next prime is 1201513319. The reversal of 1201513312 is 2133151021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201513312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201513319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223533 + ... + 228844.

It is an arithmetic number, because the mean of its divisors is an integer number (99749349).

Almost surely, 2^1201513312 is an apocalyptic number.

It is an amenable number.

1201513312 is a deficient number, since it is larger than the sum of its proper divisors (1192471064).

1201513312 is an equidigital number, since it uses as much as digits as its factorization.

1201513312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452470 (or 452462 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1201513312 is about 34662.8520465354. The cubic root of 1201513312 is about 1063.1050854147.

Adding to 1201513312 its reverse (2133151021), we get a palindrome (3334664333).

The spelling of 1201513312 in words is "one billion, two hundred one million, five hundred thirteen thousand, three hundred twelve".